Improved dielectric strength and loss tangent by interface modification in PI@BCZT/PVDF nano-composite films with high permittivity

Lu, Haowei; Lin, Jiaqi; Yang, Wenlong; Liu, Lizhu

doi:10.1007/s10854-017-7173-2

Cited by 14 publications

(7 citation statements)

References 45 publications

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“…In brief, the incorporation of conductive fillers decreases the electric breakdown strength of overall nanocomposites even below its percolation threshold due to the increase in conductive paths. , However, the high-dielectric-constant fillers upon their addition to polymer matrix first enhances and then reduces the overall breakdown strength of nanocomposites. Because the filler addition under its threshold volume fraction successfully blocks the electric field treeing but it then starts conducting the external electric field due to enhanced space charges, fabrication defects, agglomeration of particles, and particle to particle interactions. ,− …”

Section: Background Of Polymer Nanocomposites For Energy Storagementioning

confidence: 99%

Polymer Matrix Nanocomposites with 1D Ceramic Nanofillers for Energy Storage Capacitor Applications

Zhang

Marwat

Xie

et al. 2019

ACS Appl. Mater. Interfaces

202

103

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Recent developments in various technologies, such as hybrid electric vehicles and pulsed power systems, have challenged researchers to discover affordable, compact, and super-functioning electric energy storage devices. Among the existing energy storage devices, polymer nanocomposite film capacitors are a preferred choice due to their high power density, fast charge and discharge speed, high operation voltage, and long service lifetime. In the past several years, they have been extensively researched worldwide, with 0D, 1D, and 2D nanofillers being incorporated into various polymer matrixes. However, 1D nanofillers appeared to be the most effective in producing large dipole moments, which leads to a considerably enhanced dielectric permittivity and energy density of the nanocomposite. As such, this Review focuses on recent advances in polymer matrix nanocomposites using various types of 1D nanofillers, i.e., linear, ferroelectric, paraelectric, and relaxor−ferroelectric for energy storage applications. Correspondingly, the latest developments in the nanocomposite dielectrics with highly oriented, surface-coated, and surface-decorated 1D nanofillers are presented. Special attention has been paid to identifying the underlying mechanisms of maximizing dielectric displacement, increasing dielectric breakdown strength, and enhancing the energy density. This Review also presents some suggestions for future research in low-loss, high energy storage devices.

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Section: Background Of Polymer Nanocomposites For Energy Storagementioning

confidence: 99%

Polymer Matrix Nanocomposites with 1D Ceramic Nanofillers for Energy Storage Capacitor Applications

Zhang

Marwat

Xie

et al. 2019

ACS Appl. Mater. Interfaces

202

103

View full text Add to dashboard Cite

show abstract

“…[9][10][11][12][13][14][15][16] Many efforts have been dedicated to enhance dielectric properties of polymeric materials. [16][17][18][19][20][21][22][23][24][25][26] However, low dielectric permittivity of the polymeric materials still poses a challenge. A conventional process typically used to increase the dielectric permittivity is by introducing electrical conductivity or incorporating conductive fillers into the polymer matrix to form a composite.…”

Section: Introductionmentioning

confidence: 99%

“…Polymeric materials with high values of the dielectric permittivity represent an important class of materials, with numerous applications in various fields of research and technology, such as for instance energy storage, sensors, organic electronics, actuators, and so forth . Many efforts have been dedicated to enhance dielectric properties of polymeric materials . However, low dielectric permittivity of the polymeric materials still poses a challenge.…”

Section: Introductionmentioning

confidence: 99%

Polymer bilayers with enhanced dielectric permittivity and low dielectric losses by Maxwell–Wagner–Sillars interfacial polarization: Characteristic frequencies and scaling laws

Samet

Kallel

Serghei

2019

J of Applied Polymer Sci

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An efficient approach to obtain polymeric materials with high permittivity values and low dielectric losses is presented in the current study. For this purpose, dielectric measurements by means of broadband dielectric spectroscopy, numerical simulations, and analytical calculations have been carried out for bilayer structures consisting in an insulating and a conductive polymer layer. Polyethyleneterephtalate and polytetrafluoroethylene have been used as insulating layers while, as conductive materials, blends of polyvinyl acetate with an ionic liquid, 1‐butyl‐3‐methylimidazolium tetrafluoroborate. The dielectric properties of the samples have been investigated in a broad frequency (from 10−1 to 107 Hz) and temperature range in order to determine, through the analysis of the scaling laws governing the interfacial polarization effects, the characteristic frequency ranges and the amplitude of the enhanced permittivity. An excellent agreement is found between the experimental results, the numerical simulations, and the analytical calculations. Finally, we show that bilayer polymeric materials with permittivity values as high as ε′ = 556 and with low dielectric losses (tan(δ) = 0.001) can be readily obtained by the current approach. This could have multiple applications, especially in the field of organic electronics. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47551.

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“…In terms of practical application, the composites must possess outstanding thermal stability. As shown in Figure , the thermal decomposition of the composites includes three stages: firstly, the weight loss stage starting below 100 °C was ascribed to the removal of residual solvent and absorbed water; the second and the third weight loss was detected at approximately 440 °C and 520 °C, which could be attributed to the decomposition of PVDF and PI, respectively ,. The char yield of the composites decreased with the increase of the reaction temperature and the content of PVDF, which indicated that the thermal stabilities of the composites decreased.…”

Section: Resultsmentioning

confidence: 97%

Effect of Reaction Temperature on the Properties of Polyimide Dielectric Composites

Mao

Zhang

et al. 2019

ChemistrySelect

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Polymer dielectric composites are fabricated by blending polyimide (PI) with poly(vinylidene fluoride) (PVDF) base on different temperature conditions. The dielectric and thermal properties of the composites are studied. Experimental results indicate that the dielectric properties of the composites are enhanced by increasing the reaction temperature, while all the resulted composites exhibit excellent thermal stability. Specifically, the sample showing optimized dielectric properties can be obtained at a reaction temperature of 50°C.

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Improved dielectric strength and loss tangent by interface modification in PI@BCZT/PVDF nano-composite films with high permittivity

Cited by 14 publications

References 45 publications

Polymer Matrix Nanocomposites with 1D Ceramic Nanofillers for Energy Storage Capacitor Applications

Polymer Matrix Nanocomposites with 1D Ceramic Nanofillers for Energy Storage Capacitor Applications

Polymer bilayers with enhanced dielectric permittivity and low dielectric losses by Maxwell–Wagner–Sillars interfacial polarization: Characteristic frequencies and scaling laws

Effect of Reaction Temperature on the Properties of Polyimide Dielectric Composites

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